gnucash-on-windows master: Update libgsf to 1.14.39

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-on-windows/commit/a64dca9e (commit)
	from  https://github.com/Gnucash/gnucash-on-windows/commit/60de79c2 (commit)



commit a64dca9e0855fc761f6f660191bf7ac850086487
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Jul 15 00:22:28 2016 +0000

    Update libgsf to 1.14.39
    
    Builds successfully with newer versions of glib.



Summary of changes:
 defaults.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)